Calculating-machine.



U NTED STATES PATENT OFFICE.

FRANK C. RINSCIIE, OF ST. LOUIS, MISSOURI, ASSIGNOR TO UNIVERSAL ACCOUNTANT MACHINE COMPANY, OF ST. LOUIS, MISSOURI, A COR- PORATION OF MISSOURI.

CALCULATlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 709,244, dated September 16, 1902.

Application iiled .Tuly 8,1901. Serial'No. 67.441. (No model.)

To a/Z whom. t may concern:

Be it known that I, FRANK C. RINsoHE, a citizen of the United States, residing at the city of St. Louis,State of Missouri, have invented a certain new and useful Improvement in Electrically- Operated Calculating-Machines, of which the following is a full, clear,

and exact description, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawin gs,forming part of this speciiication, in which- Figure 1 is a side elevational view, partly in section, of a calculating-machine, showing my improved electrically-operated mechanism connected tothe same; and Fig. 2 is a sectional view on line 2 2, Fig. 1.

This invention relates to a new and useful improvement in electrically-operated calculating-machines, being designed particularly as an improvement upon the calculating-machine patented to me July 24, 1000, No. (554,181.

In an application filed by me on or about May 9, 1901, serially numbered 59,391, I have shown and described a construction wherein a calculating-machine is driven by a motor, which motorconstantly runs and is connected to the calculating-machine by clutch mechanism which is thrown into operation by the operator, said clutch mechanism being automatically thrown out of operation when the motor drives the calculating-machine a proper distance. In the present application the motor normally remains idle, being constantly geared to the power-shaft of the calculatingmachine, and when the circuit is completed through the motor it is energized, so that the power from its armature-shaft is transmitted to the power-shaft of the calculating-machine, means being provided whereby at the cornpletion of the required stroke the motor is automatically cut out of circuit. A switchkey is arranged in juxtaposition to the calculating-machine, so that the operator after setting up an example presses the switch-key, completing the circuit through the motor, after which the motor drives the power-shaft of the calculating-machine the required distance, the iinal movement of the motor automatically operating the switch-key and breaking the circuit through said motor.

My present invention consists in the construction, arrangement, and combination of the several parts, all as will hereinafter be described and afterward pointed out in the claims.

In the drawings I have shown the calculating-machine of my former patent, in which 57 indicates what I will term the power-shaft, which power-shaft is connected to and drives the adding and recording mechanisms, which are not shown here. This power-shaft is provided with a cam projection, to the extremity of which is connected a chain or iieXible cable (il, whose other end is attached to a spring 62, the energy in which spring being utilized to return the power-shaft 57 to its normal orhome position,the saine as in my former patent.

1 indicates a rock or crank arm arranged upon the power-shaft 57, to whose outer end is connected a linkZ, the opposite end of said link being connected to a slotted rocking frame 3.

fi indicates the motor-casing, whose armature-shaft carries a pinion 5, in mesh with a driving-gear 6, mounted upon some suitable counter-shaft, journaled in the cabinet or casing inclosing the moving parts ot the mechanism. This driving-gear is provided with a crank or wrist pin 7, arranged in the slot of the rocking frame 3. One revolution of the driving-gear through the mechanism above described will operate the power-shaft 57 lrst in one direction, moving said powershaft through an arc of a circle approximating about forty-seven degrees, and returning said power-shaft back to its home position.

8 indicates a switch-blade cooperating with suitable terminals to which are connected the supply and return wires of the circuit. This switch-blade is provided with a curved upper end, with which cooperates a pivoted dog 9, said dog being in the path of the shank of a depressible key 10, the normal position of said switch-arm, dog, and key being shown in full lines, in which position the circuit through the motor is broken, and in dotted lines the parts are shown in the position IOO where the circuit is completed through the motor. These parts are so well understood that it is not deemed necessary to give a further detail description of the same here.

llindicatesan arm connected tothe switchblade, which arm is provided with a pin l2 at its inner end, which pin is in the path of movement of the rock-arm l, so that when the key is depressed and the driving-gear has made half a revolution the arm I comes in Contact With the pin 12 and withdraws the switch-blade from its terminals, breaking the circuit through the motor.

18 indicates a spring-pressed arm carrying a brake-shoe at its upper end, which brakeshoe cooperates with the drivingfgear.

The operation of the parts above described is as follows: After an example has been set upon the keyboard, as usual, the key lOs depressed, so as to completethe circuit through the motor. The motor being energized will drive the master-gear, which through the connections above described will operate the power-shaft 57 in one direction positively. When the arm l comes in contact with the projection l2, the motor is cut out of the circuit, and from that point on the master-gear completes its revolution against the frictional resistance of the brake, but aided by lnomentum and the spring 62. This spring 62 is powerful enough to return the parts to their normal or home position and assisted by the brake will prevent momentum from carrying the parts beyond such home position.

I am aware that minor changes in the construction, arrangement, and combination of the several parts of my machine may be made and substituted for those herein shown and described without in the leastI departing from the nature and principle of my invention.

Having thus described myinvention, what I claim, and desire to secure by Letters Patent, is-

l. In a calculating-machine, the combination with a keyboard, of registering and recording mechanisms, a rock-shaft for driving said mechanisms, a rock-arm on said shaft, a master-gear provided with a crank-pin, connections between said crank-pin and rockshaft, a motor for driving said master-gear manuallyoperable, means for completing the circuit through, of eti'ecting the energization of said motor, and means operated by said motor for denergizing the same; substantially as described.

2. In a calculating-machine, the combination with registering and recording mechanisms, of a master-gear for operating the same, a motor for driving said master-gear part of a revolution, and means independent of the motor, and in which power is stored by said motor for causing said gear to complete its revolution; substantially as described.

3. In a calculating-machine, the combination with registering and recording mechanisms, of a master-gear for operating the sa me, and a motor for driving said master-gear part of a revolution and for storing up power which becomes effective, when the motor is ineiective, to drive the master-gear to complete its revolution; substantially as described.

4. In a calculating-machine, the combinaVn tion with registering and'recording mechanisms, of a master-gear for operating the same, a motor for driving said master-gear part of a revolution, and a spring in which power is stored by the motor in said action, said spring becoming operative to impart motion to said gear and cause it to complete its revolution; su bstantially as described.

5. In a calculating-machine, the combina tion with registering and recording mechanisms, of a master-gear for operating the same, a motor for driving said master-gear a part of a revolution, said action storing up power which becomes effective to drive the gear to complete its revolution, and means for rendering the motorineffective whenit has driven the gear part of a revolution; substantially as described.

6. In a calculating-machine, the combination with registering and recording mechanisms, of a power-shaft for driving the same, a master-gear for rocking said power-shaft, a motor for driving said master-gear part of a revolution, means for storing up power by such operation, and devices for denergizing the motor when it has driven the master-gear part of a revolution, whereby, said' stored power becomes effective to drive the gear to complete its revolution, and to restore the powershaft and the connections therebetween and the motor to their normal position; substantially as described.

7. In a calculating-machine, the combination with registering and recording mechanisms, of a rock-shaft *for driving the same, an arm on said shaft, an electric motor, connections between said motor and said arm for rocking the latter, a device in the motor-circuit accessiole to the operator for completing the motor-circuit, means operated by the rockarm as it approaches the end of the first half of its stroke, for breaking the circuit, and means in which power is stored during the second period of operation by the motor, which power becomes effective for driving the rockarm the second half of its stroke independently of the motor; substantiallyas described.

8. In a calculating-machine, the combination with registering and recording mechanisms, of a power-shaft for driving the same, a motor, connections between said motor and power-shaft, in which connections is included a rock-,arm on the power-shaft, a switch for cutting the motor in or out of circuit, andan arm connected to said switch and provided with a projection in the path of said rock-arm, whereby the switch is automaticallyoperated when said rockarm is at one extremity of its movement, substantially as described.

9. In a calculating-machine, the combination with registering and recording mcchan` isms, of a power-shaft for driving the same,

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a motor, connections between said motor and said power-shaft, a switch, an arm connected to said switch and provided with a projection, through the instrumentality* of which said switch is automatically operated by the connections between the motor and the powershaft, a dog cooperating with the switch, and a key for operating the dog, substantially as described.

10. In a calculating-machine, the combination with registering and recording mechanisms, of a power-shaft for driving the same, a motor for driving a master-gear, suitable connections between said master-gear and power-shaft, a brake for the master-gear, a switch for cutting the motor in or out of circuit, means for operating the switch -when the master-gear has made part of a revolution, and a spring connected to the power-shaft for returning the parts to a normal or home position, substantially as described.

l1. In a calculating-machine, the combination with registering and recording mechanisms, of a power-shaft for driving the same, a motor, a master-gear driven by said motor, a brake normally cooperating with said master-gear, a switch for cutting the motor in circuit, connections between said master-gear and power-shaft whereby the power-shaft is positively driven in one direction, means for automatically operating the switch and cutting the motor out of circuit, a brake tending to overcome the momentum of the parts, and a spring for restoring the parts to a normal or home position, substantially as described.

12. In a calculating-machine, the combination with registering and recording mechanisms, of a power-shaft for driving the same7 a motor, connections between the master-gear and said power-shaft, a switch for cutting said motor in or out of circuit, and a key or lever accessible to the operator of the machine for operating said switch, substantially as described. Y

In testimony whereof I hereunto affix my signature, in the presence of two witnesses, this 6th day of July, 1901.

FRANK C. RINSCHE.

Witnesses GEORGE BAKEWELL, RALPH KALisH. 

